DRI

VARIZON® Displacement unit with adjustable distribution pattern

Adjustable spread pattern and affected area
Suitable for all types of rooms
Cleanable
Air volume measuring point
Very easy to recess in a wall
Concealed fixing
Standard colour White RAL 9003
- 5 alternative standard colours
- Other colours upon request

Calculate with your requirements

DRI is a complete, rectangular displacement unit for wall or ceiling installation, surface or recessed mounted. It can provide a large air flow at a low velocity in the occupied zone. The spread pattern is easily adjustable due to the adjustable air deflectors.

Technical description

Design

DRI is a complete flat rectangular low velocity diffuser.
Recommended placement is on the floor or wall.
Can be placed in ceilings.
The body consists of a rear section with side, top and bottom plates and Varizon air distribution system with an air diffusion plate which is equipped with adjustable deflectors of polypropylene-PP.
Circular connection to inlet socket for sizes 200 to 400.
Rectangular connection for sizes 200-600 and 250-800.
Cleaning hatch is in the air distribution plate.
The front consists of one or two perforated front plates.
4 white enamelled angle strips are supplied with the air diffuser and are used for recessed installation in the wall. NOTE! Installation accessories are not supplied with the product.

Material and surface treatment

The displacement unit is manufactured in galvanized sheet steel and aluminum profiles. It is coated with paint.

Standard colour:
- White semi-gloss, lustre 40, RAL 9003/NCS S 0500-N
Alternative standard colours:
- Silver gloss, lustre 80, RAL 9006
- Grey aluminium gloss, lustre 80, RAL 9007
- White semi-gloss, lustre 40, RAL 9010
- Black semi-gloss, lustre 35, RAL 9005
- Grey semi-gloss, lustre 30, RAL 7037
Non-painted finish and other colours available on request.

Adaptation

BIG ROOM Sound pressure room (Lp150A) *)
DRI Size	25 dB(A)		30 dB(A)		35 dB(A)
DRI Size	l/s	m3/h	l/s	m3/h	l/s	m3/h
200	220	792	265	954	315	1134
250	340	1224	400	1440	480	1728
315	515	1854	610	2196	720	2592
400	790	2844	930	3348	1100	3960
200-600	610	2196	725	2610	860	3096
250-800	840	3024	980	3528	1150	4140
Sound level is valid at 150 m2 equivalent sound absorption area at distance of 2 m from terminal. All values are valid on straight duct section without disturbance. *) Lp150A = Sound pressure incl. A-filter with 16 dB room attenuation and 150 m2 room absorption area.

SMALL ROOM Sound pressure room (Lp10A) *)
DRI Size	25 dB(A)		30 dB(A)		35 dB(A)
DRI Size	l/s	m3/h	l/s	m3/h	l/s	m3/h
200	145	522	175	630	210	756
250	220	792	265	954	320	1152
315	350	1260	415	1494	490	1764
400	535	1926	625	2250	745	2682
200-600	410	1476	480	1728	575	2070
250-800	580	2088	680	2448	795	2862
Sound level is valid at 10 m2 equivalent sound absorption area at distance of 2 m from terminal. All values are valid on straight duct section without disturbance. *) Lp10A = Sound pressure incl. A-filter with 4 dB room attenuation and 10 m2 room absorption area.

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Include Accessory documents

Document	Article	Document type	Date
Building product declaration (pdf 48.85kB)	DRIf	Quality	24/05/2018
Low velocity displacement unit with VARIZON (pdf 2.62MB)	DRIf	Technical catalogue	01/03/2024
Installation, commissioning, maintenance (pdf 1.07MB)	DRIf	IOM Manual	11/05/2020
Commissioning guide - Air diffusers, VAV/CAV- & Commissioning dampers (pdf 7.75MB)	Air diffusers, VAV/CAV- & Commissioning dampers	IOM Manual	19/08/2024
Product description - Air diffusers & dampers (pdf 249.19kB)	Air diffusers & dampers	IOM Manual	19/10/2023
Nano certificate (pdf 71.51kB)	Air diffusers	Quality	03/10/2023
Overview - Air diffusers (pdf 3.34MB)	Air diffusers	Brochure	12/07/2022

Whilst we have made every effort to ensure information on this website is up to date and accurate, the technical specification and availability of products/services listed on this website may vary market to market and are subject to change without notice. Please contact your regional representative or visit your local website for further details.